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2 edition of Robustness analysis tools and pole assignment found in the catalog.

Robustness analysis tools and pole assignment

E. Kontogiannis

Robustness analysis tools and pole assignment

by E. Kontogiannis

  • 352 Want to read
  • 27 Currently reading

Published by UMIST in Manchester .
Written in English


Edition Notes

StatementE. Kontogiannis ; supervised by N. Munro.
ContributionsMunro, N., Control Systems Centre.
ID Numbers
Open LibraryOL20160372M

Roban: A Parameter Robustness Analysis Tool and its Flight Control Applications IFAC Proceedings Volumes, Vol. 33, No. 14 New criteria for the analysis of PIO based on robust stability methodsCited by:   Robustness Analysis is a method for evaluating initial decision commitments under conditions of uncertainty, where subsequent decisions will be implemented over time. The robustness of an initial decision is an operational measure of the flexibility which that commitment will leave for useful future decision choice.

Robustness is the question of how valid our procedures are if the model doesn't exactly fit. Robustness to departures from linearity: • Not all relationships are linear, but sometimes a linear model can be useful even if the relationship is known not to be linear. (e.g., to check for an increasing or decreasing. The partial eigenvalue assignment problem concerns reassigning a few of undesired eigenvalues of a linear system to suitably chosen locations and keeping the other large number of eigenvalues and eigenvectors unchanged (no spill-over). This paper considers the partial eigenvalue assignment problem with time delay robustness. A time delay robustness measure is presented by analyzing the Cited by: 4.

The idea of using a ‘robust’ method of data analysis seems popular. Many scientists will regard such a method as being superior to one for which no such property is claimed. But what actually is a ‘robust’ method? This paper discusses what is meant by robustness in statistical analysis and, by implication, in general data by: Modelers often rely on robustness analysis, the search for predictions common to several independent models. Robustness analysis has been characterized and championed by Richard Levins and William Wimsatt, who see it as central to modern theoretical practice. The practice has also been severely criticized by Steven Orzack and Elliott Sober, who claim that it is a nonempirical form of.


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Robustness analysis tools and pole assignment by E. Kontogiannis Download PDF EPUB FB2

Because the desired pole locations are now described by a polytope, Theorem has to be modified• Robust pole assignment Now suppose that the desired pole locations are specified by a polytope Sd = {d: Rd-robust controllers is Cited by: Pole assignment is a well-known method for controller design.

If the plant parameter vector is characterized by some uncertainty and if there is some flexibility in the desired closed-Ioop pole vector, the problem of finding a robust controller : Alexander Weinmann. The state feedback pole assignment problem in control system design is essentially an inverse eigenvalue problem, which requires the determination of a matrix having given eigenvalues (cf.

This is the goal of robust pole assignment as formulated for standard systems (see also for a recent survey) and descriptor systems. Both these aspects are decisive for the overall sensitivity of assigned eigenvalues, because, as was shown in the standard systems case [10], high feedback gains or high condition numbers lead to increased sensitivity of the closed-loop by: robustness analysis.

This requires developing a more detailed, albeit prelim-inary, account of robustness analysis and the notion of a ‘robust theorem’.

I will argue that robustness analysis is effective at identifying robust theorems, and while it is not itself a confirmation procedure, robust theorems are likely to be Size: KB. Real pole whose location varies between and -4 Unmodeled dynamics which amount to 25% relative uncertainty at low frequency rising to % uncertainty at rad/s.

The feedback path has a cheap sensor which is modeled by a first-order filter at 20 rad/s and an. It covered the analysis and synthesis of sampled-data systems.

The second German edition of ex­ tended the scope to design, in particular design for robustness of control system properties with respect to uncertainty of plant parameters.

This book is Robustness analysis tools and pole assignment book revised translation of the second Ger­ man edition. Robustness Analysis Robustness analysis provides an approach to the structuring of problem situations in which uncertainty is high, and where decisions can or must be staged sequentially.

The specific focus of robustness analysis is on how the distinction between decisions and plans can be exploited to maintain flexibility. On the assessment of robustness Jack W. Baker a,*, Matthias Schubert b, Michael H.

Faber b a Civil and Environmental Engineering, Terman Engineering Center, RoomStanford, CAUnited States b Institute for Structural Engineering, Swiss Federal Institute of Technology (ETH Zu¨rich), Switzerland Received 30 January ; received in revised form 23 August ; accepted Rosenberg and Stephen [ROSENBERG] introduced robustness analysis as a way for filling the gap between analysis (the what) and design (the how).From that point of view robustness analysis is a preliminary design when designers make assumptions on the design and start thinking of the possible technical solutions.

Successful Robustness Analysis. By Doug Rosenberg, Ma This simple and useful technique links the what of analysis to the how of design by ensuring your use case text is correct. It addresses necessary courses of action and allows you to continue to discover objects.

The Delphi technique is a data collection tool that you can use to solicit insight from a group of experts in a structured way. In a needs assess- ment, the Delphi technique is typically used to gain expert input for defi n- ing needs, to identify desired results, to prioritize causes, or to recommend Size: 3MB.

This paper considers pole assignment and robust pole assignment problems for discrete-time linear periodic systems by using linear periodic state feedback. The monodromy matrix of the closed-loop system is represented in a special by: In Use Case Driven Object Modeling With UML Doug Rosenberg and Kendall Scott describe a technique called robustness analysis.

The basic idea is that you can analyze the steps of a use case to validate the business logic within it and to ensure that the terminology is consistent with other use cases that you have previously analyzed - in other words you can use them to ensure that your use.

To improve the robustness with respect to the uncertainties of system coefficient matrices, an optimization problem for the design freedoms of the controller is solved.

For the sake of use in practical applications, a design problem for the attitude control of the spacecrafts with time-varying moment of inertia is by: 2. This paper considers pole assignment and robust pole assignment problems for discrete-time linear periodic systems by using linear periodic state feedback.

The monodromy matrix of the closed-loop s Cited by:   Abstract. Numerical methods are described for determining robust, or well-conditioned, solutions to the problem of pole assignment by state feedback.

The solutions obtained are such that the sensitivity of the assigned poles to perturbations in the system and gain matrices is minimized. It is shown that for these solutions, upper bounds on the norm of the feedback matrix and on the transient Cited by: This article provides a tutorial on the development of a complete and systematic optimal and robust control theory for SISO systems using only preclassical tools growing out of the Routh stability.

Robustness and Performance Quotation Authors, citation. This chapter treats robustness and performance. It begins with analysis of a simple controller. It is shown that seemingly reasonable design choices gives a closed loop system that is extremely sensitivity to parameter varia-tions.

New concepts, which give intuition and make it possible to File Size: KB. In this chapter we have presented the possible use of symbolic algebra in the context of robust pole assignment for parametric uncertain systems.

In particular, we have shown that symbolic algebra has a wide area of application when general forms of pole assignment compensators are sought. It has also been shown that in some cases it is possible to convert the dynamic output feedback problem Cited by:.

The robust pole assignment approach for linear time-invariant multivariable system is investigated based on the properties of normal matrix. By the combination of frequency-domain and time-domain normal matrix control methods, the normal pole assignment approach proposed can provide H robust control law to the linear time-variant system.

Abstract: We present a unifying computational framework to solve robust pole assignment problems for linear systems using state feedback. The new framework uses Sylvester equation based parametrizations of the pole assignment problems. The non-uniqueness of solutions is exploited by minimizing additionally sensitivity of closed-loop eigenvalues and the norm of the .A key feature of control systems is robustness, the property that small perturbations in the system inputs cause only small changes in its outputs.

Robustness is key to designing systems that work under uncertain or imprecise environments. While continuous control design algorithms can explicitly incorporate robustness as a design goal, it is not clear if robustness is maintained at the.